Submission

Score: 100

User: chillxvtkz

Problemset: ตัวอักษรตัวแรกในคำ

Language: cpp

Time: 0.004 second

Submitted On: 2026-10-07 11:38:38

#include <bits/stdc++.h>
#define ll long long
#define ct cout << ' '
#define el cout << endl;
using namespace std;
const int mx = 1e9;
const int mn = 1e-9;

int a[300];
string s,t;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> s;
    sort(s.begin(),s.end());
    for (int i = 0; i < s.size(); i++)
    {
        for (int j = 0; j < 26; j++)
        {
            if(s[i]=='A'+j) a['A'+j] += 1;
        }
        
    }
    for(int i = 0;i<300;i++){
        if(a[i]==1){
            cout << char(i);
            return 0;
        }
    }
    
    
    return 0;
}